SND_PCM_LIB_PREALLOC(9) Sound Devices SND_PCM_LIB_PREALLOC(9)NAMEsnd_pcm_lib_preallocate_pages_for_all - pre-allocation for continuous
memory type (all substreams)
SYNOPSIS
int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm * pcm,
int type, void * data,
size_t size, size_t max);
ARGUMENTS
pcm
the pcm instance
type
DMA type (SNDRV_DMA_TYPE_*)
data
DMA type dependent data
size
the requested pre-allocation size in bytes
max
the max. allowed pre-allocation size
DESCRIPTION
Do pre-allocation to all substreams of the given pcm for the specified
DMA type.
RETURN
Zero if successful, or a negative error code on failure.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 SND_PCM_LIB_PREALLOC(9)